Boston Red Sox
Although they have not thrown an MLB pitch in 2024, Ryan Dempster threw 20,036 pitches that were tracked by the PITCHf/x system between 2007 and 2013, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2013, they relied primarily on their Fourseam Fastball (90mph) and Slider (84mph), also mixing in a Splitter (82mph) and Cutter (88mph). He also rarely threw a Sinker (89mph).
In 2013, compared to other RHP:
Their fourseam fastball has below average velo, generates fewer whiffs/swing compared to other pitchers' fourseamers and has some natural sinking action. Their slider has some two-plane movement. Their splitter results in more flyballs compared to other pitchers' splitters and has below average velo. Their cutter (take this with a grain of salt because they've only thrown 15 of them in 2013) generates fewer whiffs/swing compared to other pitchers' cutters, results in more flyballs compared to other pitchers' cutters, has good "rise" and has little cutting action. Their sinker (take this with a grain of salt because they've only thrown 9 of them in 2013) is so slow that it is substantially gravitational, is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers and has some natural sinking action.